Vixen in Velvet (The Dressmakers, #3)

"Lethally charming Simon Blair, Marquess of Lisburne, has reluctantly returned to London for one reason only: a family obligation. Still, he might make time for the seduction of a certain redheaded dressmaker--but Leonie Noirot hasn't time for him. She's obsessed with transforming his cousin, the dowdy Lady Gladys, into a swan. Leonie's skills can coax curves--and profits--from thin air, but his criminally handsome lordship is too busy trying to seduce her to appreciate her genius. He badly needs to learn a lesson, and the wager she provokes ought to teach him, once and for all. A great plan, in theory--but Lisburne's become a serious distraction and Leonie's usual logic is in danger of slipping away as easily as a silk chemise. Could the Season's greatest transformation be her own?"--Page 4 of cover.